You are a flight assistant. 
 USER: Hi. I am Timothy Lee.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to go to Las Vegas next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Well, I planned my journey on 01/25 to 01/27.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My source airport code is IAD and destination airport code is LAS.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: There is a flight with ticket fare 200 in Hawaiian airlines with a stopover. Is it ok for you?

USER: Can you check any direct flight is available on my journey dates?

ASSISTANT: There is a direct flight with ticket fare 300 in Hawaiian airlines. Is it ok for you?

USER: That's ok, my friend is joining in between my journey you can book in a connecting flight.

ASSISTANT: Your booking is confirmed with flight number 1009 with a connecting flight.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us, have a nice day.