You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please book  a flight ticket from DEN to DTW?

ASSISTANT: Can you help me with your travelling dates?

USER: Thank you. I have planned my travel dates as May 16 and May 18.

ASSISTANT: Is there any connection limit?

USER: Yes, I am looking for single connecting flight.

ASSISTANT: Do you have any class preference?

USER: Yes, I would prefer economy class to travel.

ASSISTANT: Is there any airline preference?

USER: No, I am ok with any airlines.

ASSISTANT: May I know your departure and arrival timings?

USER: I do not have any more specifications.

ASSISTANT: Can you help me with your name?

USER: Sure, myself Larry Walker.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: We found a connecting flight of Delta Airlines in the economy class with fare 100, can I proceed for booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is reserved with your flight number 1010.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.