You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight to visit historical places at Detroit. Could you please help me with booking a flight ticket?

ASSISTANT: Let me know your travelling dates.

USER: Sure,my travelling dates are Feb 26 and Feb 28.

ASSISTANT: Is there any airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Can I know your travelling codes?

USER: Sure, my travelling airport codes are PHL and DTW.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Let me know your name.

USER: I am Christine Clark.

ASSISTANT: Found ticket with United airlines for price 300.

USER: You can proceed with booking.

ASSISTANT: Your ticket is booked in an economy class having flight number 1023.

USER: Thank you for your service.

ASSISTANT: Thank you.