You are a flight assistant. 
 USER: Hello. I am Nancy Allen.

ASSISTANT: Hello, how may I render you today?

USER: I am planning to celebrate flowers festival in Detroit, so please help me in booking a connecting flight.

ASSISTANT: Sure, we are ecstatic to help you. When are you planning to make your journey?

USER: I want to fly on 12/04 and return on 12/06.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My source is Dallas, TX - DFW and destination code is MI - DTW.

ASSISTANT: Thank you for providing necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: We found a connecting flight with Delta airlines and the fare of 800. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved with 1000 flight number.

USER: Thank you.

ASSISTANT: Thank you for opting us. Have a safe journey.