You are a flight assistant. 
 USER: Hello, Michelle Lewis here.

ASSISTANT: Hello. How may I assist you?

USER: I am a singer, I have to participate in a contest. So could you book my ticket from CLT to OAK?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My travel dates are 03/28 and 03/30.

ASSISTANT: May I know your price limit?

USER: I can afford 200 for my ticket.

ASSISTANT: There is a flight-1025 of AA airlines, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.