You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Me and my best friend are planning to go for Hummer tour at Las Vegas, can you help me with booking a flight ticket on 07/18?

ASSISTANT: Sure. When will you return?

USER: I will return on 07/20.

ASSISTANT: Can I have your airport codes?

USER: Sure, it's from IAD to LAS.

ASSISTANT: Please let me know, if you have any specifications?

USER: My price limit is 200.

ASSISTANT: Thanks for your details. We found a connecting flight of Frontier airline with 1009 number on your dates. Shall I proceed with booking?

USER: Ok, you can proceed with the booking.

ASSISTANT: I need your name to confirm this reservation.

USER: My name is George Robinson.

ASSISTANT: Your ticket has been confirmed with the name of George Robinson.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.