You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from DTW to PHL to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you provide your travel dates please?

USER: I am departing on Feb 05 and return on Feb 07.

ASSISTANT: Can I know your connection limit?

USER: I prefer to travel in connecting flight.

ASSISTANT: Can I have your name please?

USER: My name is Mary Baker.

ASSISTANT: Can I know your airline preference?

USER: I am comfortable with any airlines.

ASSISTANT: Can I know your requirements if you have?

USER: I do not have any other specifications.

ASSISTANT: There is a connecting flight 1002 in United Airlines with cost 100. Shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your booking is done with economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.