You are a flight assistant. 
 USER: Hi, I am Lisa Wilson.

ASSISTANT: Hello, how may I help you today?

USER: I would like to book a flight ticket to Philadelphia PHL to enjoy music festivals. Can you make a reservation with fare 5000?

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: Sure, my scheduled dates are 07/22 and 07/24.

ASSISTANT: May I know your source airport code please?

USER: Sure, I need to fly from Austin AUS.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting, we found connecting flight 1029 in  Delta airline with fare of 200.

USER: Please proceed to book.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.