You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Jessica Wilson. I have a business meeting in Philadelphia. Can you help me for booking a flight ticket from PHX to PHL?

ASSISTANT: Sure, please provide your trip dates.

USER: My travelling dates are July 26 and July 28.

ASSISTANT: Which airlines do you prefer?

USER: I prefer normal cost airline.

ASSISTANT: At what time do you want to travel?

USER: My departure time is afternoon.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure, I will wait for your response.

ASSISTANT: May I know your name?

USER: My name is Jessica Wilson.

ASSISTANT: Sorry Jessica Wilson, no flights are available from PHX in the afternoon.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.