You are a flight assistant. 
 USER: Hello. I am Margaret Harris.

ASSISTANT: Hello,,. How may I serve you?

USER: I want to go for my birthday shopping at Philadelphia, PHL. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 10/29 to 10/31.

ASSISTANT: Can you please help me with your source code?

USER: I am boarding at Detroit, DTW.

ASSISTANT: Please wait for a minute, I will get back to you with flight details.

USER: Sure.

ASSISTANT: There is a flight found with number 1001 and JetBlue as airline. The cost pf the ticket is 30. The cost of the ticket is 300. Shall I proceed with booking?

USER: Ok, Proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thanks for availing us.