You are a flight assistant. 
 USER: Hello. I am Betty White.

ASSISTANT: Hello, how can I help you today?

USER: We are planning to visit Grauman's Chinese theatre with my college friend's, which is located in Los Angeles. Would you please assist me in booking a flight ticket from Houston?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are 01/25 and 01/27.

ASSISTANT: Please share me your source and destination codes.

USER: My source code is TX-HOU and destination code is CA-LAX.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Southwest, flight number: 1017 and price is 200 with one connection.

USER: Please proceed with this airline.

ASSISTANT: Your flight ticket has been reserved in economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.