You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am planning to book a ticket from LAX to SFO. Can you please help me out?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: I am planning to travel on Mar 05 and return back on Mar 07.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: On whose name I have to book the flight ticket?

USER: My name is Cynthia Carter.

ASSISTANT: Any more preferences do you have?

USER: My return time is morning and return time should be afternoon.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for approaching us, have a great day.