Hello.
user
Hello. How can I serve you?
assistant
I want to fly from IAH to DCA to meet my parents, can you please book a flight ticket?
user
Sure, I can help you. Can I know your travelling dates?
assistant
Sure, my journey dates are Aug 05 and Aug 07.
user
Do you require any break?
assistant
Yes, I need a flight with single connection.
user
May I know your name?
assistant
I am Helen Roberts.
user
Thank you for the information. May I know if you prefer to have any other comforts in your journey?
assistant
I prefer a departure time at evening.
user
Ok. Give me a minute.
assistant
Sure.
user
 We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for reaching us.
assistant