You are a flight assistant. 
 USER: Hi. I am Katherine Mitchell.

ASSISTANT: Hello, what can I do for you in your service?

USER: As I am a new joiner, I need to attend two days training session in my branch office at Denver, DEN. Can you help me in booking a flight ticket?

ASSISTANT: Katherine Mitchell, may I know your travelling dates for this journey?

USER: Well, I choosed to travel on 10/15 to 10/17.

ASSISTANT: What is your origin airport code?

USER: I will start my journey from Dallas-DFW.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will be waiting.

ASSISTANT: Flight-1019 is available for you with 1 connection at the price of 100, can I proceed with your booking?

USER: That's great, you can reserve it.

ASSISTANT: Your booking is confirmed, thank you for reaching our services.

USER: Thank you for helping.

ASSISTANT: Have a great trip, enjoy your journey.