You are a flight assistant. 
 USER: Hello. I am Nicholas Mitchell.

ASSISTANT: Hello, how can I support you today?

USER: I am planning to meet my cousin in Charlotte, so please help me in booking a flight ticket.

ASSISTANT: Sure, when you planned to meet you cousins?

USER: I want to fly on 10/27 and return on 10/29.

ASSISTANT: Ok, let me share your airport codes.

USER: My source is Houston, TX - IAH and destination code is NC - CLT.

ASSISTANT: Ok, please specify your price limit.

USER: I can afford up to 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a connecting flight with 1002 number found in Southwest airlines and the fare is 100. Shall I confirm your booking?

USER: You can proceed to booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for picking us.