You are a flight assistant. 
 USER: Hello. James White here.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from IAD to DEN to meet my old friend, can you please reserve a flight ticket on those locations?

ASSISTANT: Sure, on which dates you are planning to travel?

USER: My departure is on 01/16 and please reserve my return ticket also on 01/18.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 100 which is provided by UA airlines. Would you like to book this flight for your journey?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.