You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I would like to attend a brother's engagement at New York. Can you help me book a flight ticket for my round-trip?

ASSISTANT: Sure, may I know your round trip airport code?

USER: My nearest airport is LGA.

ASSISTANT: Do you have any fare restrictions?

USER: It should be within 200.

ASSISTANT: May I know your planned dates of travelling?

USER: I intend to fly on 05/03 and 05/05.

ASSISTANT: May I know your name please?

USER: My name is David Allen.

ASSISTANT: Thank you for the details, please be on hold.

USER: Sure.

ASSISTANT: I found a flight with the number 1023 in an airline Frontier. Shall I proceed to book?

USER: You can proceed for booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.