You are a flight assistant. 
 USER: Hello, I am Raymond Wright.

ASSISTANT: Hello. How can I help you?

USER: I want to celebrate religious festival with my family at Las Vegas.

ASSISTANT: Ok.

USER: Can you please help me with booking a flight ticket?

ASSISTANT: Sure. may I know your travelling dates?

USER: Sure, I intend to start on 08/07 and end  on 08/09.

ASSISTANT: Please share your airport codes.

USER: Sure, I want to fly from NV-LAS to CO-DEN.

ASSISTANT: Do you have any preferences?

USER: Yes, I prefer to have a single connection.

ASSISTANT: Wait a minute, I will check and get back to you. Thanks for waiting, We are found a flight with your details. Flight number-1009, UA airline and price 100 with a connection. Shall I make reservation?

USER: Ok, please proceed with UA airline.

ASSISTANT: Ok, Your ticket has been booked. Thank you for choosing us.

USER: Thank you for choosing us, have a great day. Thank you for your service.