You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are right place. How may I assist you at this moment?

USER: Yes, I have to go to Chicago in 12th month for my film shooting purpose. Can you please help me in flight ticket booking process?

ASSISTANT: Sure, I am gleeful to help you with that.

USER: Thank you for your positive response.

ASSISTANT: Can you please provide your airborne and recur dates of travelling?

USER: My departure date is 12/02 and please confirm my return ticket also on 12/04.

ASSISTANT: Ok, may I know your genesis and terminus airport codes for booking?

USER: My genesis airport is AUS and terminus airport is ORD.

ASSISTANT: Please wait a moment to check the flights availability in your planned route and I will get back with a suitable flight for you.

USER: Ok, take your time and find a best flight for me.

ASSISTANT: Sorry, all the flights are busy in your route because there is a special program conducting at Chicago. If you have any other planned dates, please inform us.

USER: No, I don't want to change my travel dates, I will contact another airline agency.

ASSISTANT: Sorry for the inconvenience caused to you.

USER: It's alright.

ASSISTANT: For documentation purpose please provide your name?

USER: Sure, my name is Brenda Adams. Thank you for your information.

ASSISTANT: Ok Brenda, thank you for reaching us. Hope you have a great day.