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

ASSISTANT: Hello, how can I guide you today?

USER: I have to attend for a press conference at Houston, TX - HOU. Can you please book a ticket on 01/09?

ASSISTANT: Sure, please share your return date.

USER: I intend to return on 01/11.

ASSISTANT: Ok, may I know your source point?

USER: My source is Charlotte, NC - CLT.

ASSISTANT: Ok, please assign your budget.

USER: I can spend up to 500.

ASSISTANT: OK, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1025 UA airline with a fare of 100.

USER: Ok, please proceed further.

ASSISTANT: Sure, your ticket has been processed.

USER: Thanks for booking.

ASSISTANT: Thank you for choosing us.