You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Frank Johnson from Dallas.

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

USER: I want to go to Denver next for attending a business meeting there, can you please book a flight ticket for me?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: Thank you for accepting my request, I want to take off on 12/11 and book my return ticket also on 12/13.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from DFW and destination airport is DEN.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok, take your time and find a best flight for me.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by JetBlue airlines. Shall I proceed with this?

USER: That's perfect, please confirm this flight ticket for me.

ASSISTANT: Ok, your ticket has been booked in flight number 1001.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, hope you have a great journey.