You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight to PHL for vacation. Can you help me?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: I will fly on Dec 26 and return on Dec 28.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I want my depart flight in morning.

ASSISTANT: May I know your name?

USER: My name is Kimberly Carter.

ASSISTANT: Kindly mention me your source code?

USER: My source point is DTW.

ASSISTANT: We found 1009 Southwest Airlines with single connection and price of 200, shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you.