You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: My college is going to conduct the Science Fair at Denver, DEN on 01/30.

ASSISTANT: Sure, may I know your origin airport code.

USER: I need to attend this by booking a ticket with the name of Margaret Martin from Houston, HOU.

ASSISTANT: Can you please provide your return journey date?

USER: Return date is on 02/01.

ASSISTANT: Spirit airlines with single connection and price is 100 of 1002 flight. May I know your name?

USER: I already mentioned.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your helping hand.

ASSISTANT: Thank you.