You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to travel from DEN to DFW. Can you help me to book a flight ticket?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I want to travel in the flight on May 28 and May 30.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am fine with any class.

ASSISTANT: May I know your other specifications?

USER: I am looking for a connecting flight.

ASSISTANT: Please provide your good name to proceed.

USER: Carolyn Adams.

ASSISTANT: There is a connecting flight-1003 in economy class. Shall I proceed?

USER: Proceed to booking.

ASSISTANT: Ok, booking is done with Frontier airlines.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.