You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Janet Wilson from DC-IAD.

ASSISTANT: Janet nice to meet you.

USER: I want to travel to IL-ORD to attend a success party, can you make a reservation for me?

ASSISTANT: Ok, may I know your trip dates?

USER: My trip dates are 03/10 and 03/12.

ASSISTANT: Please wait for a while, let me check the availability.

USER: Sure.

ASSISTANT: Based on your request we don't have a flight, sorry for the inconvenience.

USER: It's not a problem. Thanks for your help.

ASSISTANT: Welcome, thanks for choosing us.