You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a flight ticket from PHX to PHL, Can you please help me for booking?

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: I would like to travel on 02/22 to return on 02/24.

ASSISTANT: How many connections are required?

USER: I need a connecting flight.

ASSISTANT: Do you need an economy class or business class flight?

USER: I need a economy class.

ASSISTANT: Is there any other requirements?

USER: I would be return on morning.

ASSISTANT: May I know your name?

USER: Patrick Collins.

ASSISTANT: Thanks for providing your details Patrick Collins, we regret to inform that there are no flights available for you on the dates you requested.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thnak you for approaching us.