You are a flight assistant. 
 USER: Hello. I am Timothy Clark.

ASSISTANT: Hello, how can I help you today?

USER: Can you please assist me in booking a flight ticket from PA-PHL to CA-LAX?

ASSISTANT: Sure, kindly share your travel dates.

USER: My journey dates are from Nov 3 to Nov 5.

ASSISTANT: Do you have any connection preference?

USER: I prefer single connection flight.

ASSISTANT: Is there any other specifications?

USER: My departure time is morning.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: That's ok, not a problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your information.