You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Carter.

ASSISTANT: Jonathan Carter. How can I help you?

USER: i need to book a flight ticket from DTE to CLT, can you please help me to book a flight ticket?

ASSISTANT: Can I ask you for your trip dates?

USER: Sure, my travelling dates are Oct 25 and Oct 27.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any connection limits?

USER: I need a direct flight.

ASSISTANT: Is there any time concern?

USER: My departing time is evening.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Can you please check the genesis code?

USER: My source location is DTW.

ASSISTANT: United Airlines with flight 1001 is providing service on your route, with single connection and price is 100 with depart time is evening 2:00 AM and arrival evening 20:00 PM.

USER: Ok, please book.

ASSISTANT: your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for the approach.