You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: Please find me a flight ticket to San Francisco to meet my brother. Can you help me?

ASSISTANT: Sure, may I know your budget limit?

USER: I can pay up to 500.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: I would like fly from MI-DTW to CA-SFO.

ASSISTANT: When are you planning to make your journey?

USER: 09/13 and 09/15 are my travel dates.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found an airline AA with ticket fare 200 has a single connection. Shall I proceed to book a ticket for flight number 1013?

USER: Please confirm it.

ASSISTANT: To book a ticket, may I know your name?

USER: I am Jonathan Scott.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.