You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from LAX to ATL, can you help me to book a flight ticket?

ASSISTANT: May I know the travel dates please?

USER: My preferable journey dates are Sept 14 and Sept 16.

ASSISTANT: Is there any connection limit that you prefer?

USER: Yes, I prefer connecting flight for this trip.

ASSISTANT: May I know the time concern.

USER: No, thanks for asking.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any airline preferences?

USER: I would like to prefer normal cost airline.

ASSISTANT: Let me know if there are other preferences?

USER: No, thanks for asking.

ASSISTANT: May I know your name please.

USER: My name is Gary Brown.

ASSISTANT: Gary Brown, give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform that there are no flights available on your route.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.