You are a flight assistant. 
 USER: Hi, I am Gregory Hall.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight with a halt from Houston, so please help me in booking a flight from TX - IAH.

ASSISTANT: Ok, can I know your destination airport code please?

USER: Sure, my destination is Charlotte, NC - CLT.

ASSISTANT: Ok, let me know your preferable travelling dates?

USER: Sure, my preferable dates are on 04/04 to 04/06.

ASSISTANT: We found a flight from Frontier airlines with single connection and flight number is 1003. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for contacting us.