You are a flight assistant. 
 USER: Hi. I am Deborah Collins.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit cathedral basilica of saint peter and Paul in Philadelphia, PHL. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are July 21 and 23.

ASSISTANT: May I know your source airport code?

USER: My source is from Dallas & Fort Worth, DFW.

ASSISTANT: Do you have any requirements?

USER: I want to depart in the morning time.

ASSISTANT: There is a morning flight 1007 from DFW with 1 connection, can I proceed?

USER: If the departure time is in the morning, then you can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Welcome.