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

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel in a flight from IAD to DEN, to celebrate my brother anniversary. Hoping, that is not an issue for you.

ASSISTANT: Sure, what dates you planned to travel?

USER: Sure, I would like to start my journey on 12/27 and 12/29.

ASSISTANT: Let me check in your reservation portal.

USER: Ok.

ASSISTANT: There is a flight matching your requirement, can I proceed it?

USER: Yes, you can if the available flight having connection.

ASSISTANT: Yes, it is a connecting flight. Can I proceed it?

USER: Proceed.

ASSISTANT: Your ticket has been booked with 1005 flight number, and Delta airline.

USER: Thank you for your help.

ASSISTANT: Welcome.