Hello.
 Hello, how may I oblige you today?
I am Jack Evans. Owing to an emergency, I want to change an existing reservation, so please help me in changing the reservation.
Ok, please wait for a while.
Sure.
Your reservation found, so please give your details for further process.
My source and destination codes are IAD, IAH.
Sure, can you please share your journey dates that you prefer to travel?
I want to fly on Feb 02 and return on Feb 04.
Sorry to inform you that, currently no flights are running at that locations due to abnormal weather conditions.
Not an issue. Thank you.
Thank you for reaching us.