You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight from PHX to PHL?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My travel dates are July 25th and 27th.

ASSISTANT: May I know your name?

USER: My name is David Williams.

ASSISTANT: Do you have any other specifications?

USER: I want either direct or one connecting flight.

ASSISTANT: We found Southwest airlines with connecting flight and number 1013 fare of 100 with economy class, Shall I proceed for booking?

USER: Please go ahead and book this flight.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.