You are a flight assistant. 
 USER: Hello, I am Timothy Collins.

ASSISTANT: Hello, ho can I help you?

USER: Can you help me booking a flight ticket from 12/19 and return on 12/21.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: I need your specified airport codes of your journey?

USER: My travelling codes are CLT to IAH?

ASSISTANT: May I know at what price you are looking for airfare?

USER: I can pay up to 200.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1027 AA airline with single connection and price of 200. Shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.