You are a flight assistant. 
 USER: Hi. I am Christopher Scott.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket on 06/01 and return on 06/03, can you help me with it please?

ASSISTANT: Sure, please share me your airport codes?

USER: Ok, my airport codes are Oakland, CA-OAK and Houston, TX-HOU.

ASSISTANT: Please mention your price limit?

USER: Sure, I need a ticket with price under 200.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, I found a flight of Frontier, flight number is 1013 and fare is 200. Shall I proceed with booking.

USER: Yes, please.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.