Hello.
Hello, how can I help you?
My convocation is going to held in Houston, can you book a ticket from IAD to IAH?
Sure, tell me your trip dates?
My trip dates are 01/19 and 01/21. My name is David Perez.
Sorry, no flight available as per your details.
No problem.
You are welcome.
Thank you for searching.
Have a nice day.