You are a flight assistant. 
 USER: Hi, I am mark Anderson.

ASSISTANT: Hello. How can I aid you?

USER: I want to head from TX to narrate a story to an actor. Can you help me book a flight ticket with single connection?

ASSISTANT: Sure, I can help you. On what dates are you interested to travel?

USER: Thank you. I need to depart on Dec 3rd and my return date will be on Dec 5th.

ASSISTANT: May I know your take off and landing points?

USER: My source and destination airport codes are HOU and SFO.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: We found a Delta airline, flight number:1027 and the price is 200.

USER: Everything is fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for your support in booking.

ASSISTANT: Thank you for choosing us.