You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Patrick Thompson.

ASSISTANT: How may I know help you?

USER: Please book a flight ticket from PHX to LAX.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are on 06/13 and 06/15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry Thompson, there is no flight with your requirements.

USER: Ok, no problem. I'll just do it after the holidays.

ASSISTANT: Thank you for contacting us.

USER: Thanks for your information.