Hello.
Hello. How may I help you at this moment?
Due to heavy rains cricket match got postponed, so I need to change my existing reservation. Can you help me in amending the reservation?
Sure, I am glad to help you with that flight ticket modification process.
Thank you for considering my request.
I need some of your information like name to check whether your booking is there or not,   can you please provide?
The previous reservation is done under the name of Alexander Thomas.
Ok, I have noted your information in our portal. Now give me a moment to check it.
Sure, take your own time.
Sorry for the delay in my response, I have checked with your name in our booking portal and I have got the information that no user name has done booking and register in our booking site.
Ok, not an issue, I will choose some another way.
Ok, that's fine. Thank you for reaching us.
Thank you for your valuable information.
Welcome.