You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, can I know the trip dates please?

USER: I am departing on Feb 02 and return on Feb 04.

ASSISTANT: Do you have any requirements?

USER: I do not have any other requirements.

ASSISTANT: May I know your name please?

USER: My name is Daniel Allen.

ASSISTANT: There is a connecting flight in Frontier airline, can I book it?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.