You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Myself Debra Taylor. I want to go Los Angeles next week, can you please book a flight ticket for me?

ASSISTANT: Sure, please tell me your trip dates.

USER: I want to take off on 01/04 and also confirm my return ticket too on 01/06.

ASSISTANT: Ok, please tell me your airport codes.

USER: I want to fly from HOU and destination airport is LAX.

ASSISTANT: Sorry, there is no plane as per your requested travel dates.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: My pleasure.