You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher Gonzalez.

ASSISTANT: How can I help you?

USER: I am planning to attend business meeting at Las Vegas, can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: It's a round trip, the meeting will be conducted at LAS.

ASSISTANT: May I know your journey dates please?

USER: I will fly on 05/02 and return from Las Vegas on 05/04.

ASSISTANT: Please wait.

USER: Sure, I will be waiting.

ASSISTANT: Southwest airlines is having a flight with travel charge of 200, shall I proceed booking?

USER: You can reserve it.

ASSISTANT: Your ticket has been booked with flight-1021, have a safe flight.

USER: Thank you for helping me out.

ASSISTANT: Thank you for choosing us.