You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kevin Williams.

ASSISTANT: How may I help you today?

USER: I would like to book a ticket from PHX to LAX, as there is a project work at Los Angeles. Can you help me in booking?

ASSISTANT: Sure, I am glad to help you in booking. Can you please share your travel dates?

USER: My trip dates are 07/09 to 07/11.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your particular travel dates.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.