You are a flight assistant. 
 USER: Hello, my name is Jonathan Edwards.

ASSISTANT: Hello, how may I assist you?

USER: I want to reserve a flight ticket from LAX to HOU to go to my home town. Could you book a flight ticket?

ASSISTANT: Sure, can I know the journey dates please?

USER: My journey dates would be from 11/13 to 11/15.

ASSISTANT: Sorry to say this Edwards, we could not find a flight on your requested dates.

USER: Ok, no problem, thank you for your information and quick response.

ASSISTANT: Welcome.