You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am James Hall.

ASSISTANT: In which way I can aid you at this moment?

USER: Book a ticket from DFW to DEN, to meet my parents who are living in Denver.

ASSISTANT: Sure, I will help you in flight ticket booking process.

USER: Thanks for your response.

ASSISTANT: May I know your preferable travel dates for booking flight ticket?

USER: Sure, my journey dates should be 06/15 and 06/17.

ASSISTANT: Just give me a moment, I will check flight availability in this route as per your requested dates.

USER: Sure, take your time.

ASSISTANT: I have found a flight in this route, airline is Southwest and connection limit of this airline is 1 with minimum fare of 100.  Are you comfortable with this flight?

USER: Please proceed.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1018.

USER: Thanks for your help.

ASSISTANT: You are welcome James Hall.