You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking my flight ticket from Sep 27th to Sep 29?

ASSISTANT: Sure, I can help you. Can you please provide me your source and destination airport codes?

USER: My airport codes will be HOU to SEA.

ASSISTANT: Ok, do you have any preferences?

USER: I prefer a economy class.

ASSISTANT: Ok, may I know your name?

USER: I am Jennifer Miller.

ASSISTANT: Jennifer Miller, there is a flight having single connection is available with UA airlines and the ticket fare is 100 only. Can I book the ticket for you?

USER: You can proceed.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1010.

USER: Thank you.

ASSISTANT: You are welcome and have a nice day.