You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Lee.

ASSISTANT: How can I assist you at this moment?

USER: I am planning to visit Denver, can you please book me the ticket from LAS to DEN?

ASSISTANT: Sure Lee, I will help you with that. Can I have your travel dates please?

USER: My preferable journey dates are from 07/27 to 07/29.

ASSISTANT: Ok Debra Lee, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Southwest airlines running a flight in your route which is having connection 1 and the ticket fare is 100. Is it ok for you?

USER: Please book my ticket with this airlines.

ASSISTANT: Ok Debra Lee, your ticket booking has done and the flight number is 1017.

USER: Thank you for booking my ticket.

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