You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Lee.

ASSISTANT: How may I help you today?

USER: Can you please assist me in booking a flight ticket from Phoenix, PHX to reach Seattle, SEA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are from Apr 07 to Apr 09.

ASSISTANT: Do you have any other requirements?

USER: My departure time is evening.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no flight found with your given information.

USER: That's ok, not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.