You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jacob Johnson here.

ASSISTANT: How can I aid you at this moment?

USER: I would like to attend a business meeting in Denver, can you please help me with flight ticket booking from IAD to DEN?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates for booking flight ticket?

USER: Sure, I need to travel on dates of 03/15 and 03/17.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Based on your information, I have found a flight with 0 connection with the fare of 200 provided by AA airlines. Shall I proceed with this?

USER: I need connection 1 so please check once again with that.

ASSISTANT: Sure, please wait a moment.

USER: Thank you, I will wait for your response.

ASSISTANT: Sorry no connecting flights are available in this route as per your requested dates.

USER: Oh! Sad to hear that. Anyway, I will manage my journey, please confirm connecting flight to my journey.

ASSISTANT: Sure, I have confirmed your flight ticket, airline is AA and flight number is 1000.

USER: That's good, thank you for your great help.

ASSISTANT: Thank you for reaching us, happy journey.

USER: You are welcome.