You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking a flight ticket from PHX to PHL?

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

USER: Sure, my travel dates are from May 30 to June 01.

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

USER: Please book under the name Susan Clark.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Any other specifications do you have?

USER: I would prefer economy class flight which returns in the afternoon.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your requested preferences.

USER: Ok, no issues. Thank you for the information.

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