Hi.
user
Hello, how may I help you today?
assistant
Please help me out in booking the ticket from DCA to HOU.
user
Sure, may I know your name please?
assistant
My name is Shirley Smith.
user
Ok, may I know your travelling dates please?
assistant
My trip dates will be Mar 24 to Mar 26.
user
Ok, Is there any specific class preference for you?
assistant
Economy is my class preference.
user
Do you have any other specifications please?
assistant
Return time must be in the evening.
user
Sorry Smith, there is no flight found as per your travelling details.
assistant
That's ok. Thank you.
user
You are welcome.
assistant