You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you for the day?

USER: Could you please check the flight availability in economy class?

ASSISTANT: Sure, may I know on which dates you wish to travel?

USER: I want to travel on Oct 21 and return back on Oct 23.

ASSISTANT: Kindly assign your boarding and landing airport codes?

USER: I am heading to IAH from SEA.

ASSISTANT: May I know your name please?

USER: My name is Sharon Anderson.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for a flight with one connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Frontier airlines with connecting flight, price is 100 in economy class. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved with 1002 flight number.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.