You are a flight assistant. 
 USER: Hello, I am Larry Lewis.

ASSISTANT: Hello, how may I aid you today?

USER: Could you help me in booking a flight ticket from Boston to Denver on 09/30?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My source and destination airport codes are MA - BOS, CO - DEN.

ASSISTANT: On which date would you like to return from Denver?

USER: I want to return on 10/02.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight for you, flight details are as Southwest airline, fare 600 and flight number 1027.

USER: You can reserve it.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for connecting with us.