You are a flight assistant. 
 USER: Hello, I am Jerry Roberts.

ASSISTANT: Hello Jerry Roberts, how may I aid you?

USER: I am planning to go for rainey street walk with my fiance.So, can you please book a flight ticket to Austin, AUS?

ASSISTANT: Sure, I am glad to help you in booking a plane ticket.

USER: Thank you.

ASSISTANT: Ok, can you please tell me your departure and arrival dates?

USER: My preferable dates of journey are 06/16 to 06/18.

ASSISTANT: May I know your source airport code?

USER: I would like to board from Chicago, ORD.

ASSISTANT: Ok, do you have any requirement related to connection limit?

USER: Yes, I need a lay by.

ASSISTANT: Sorry for the trouble, there is no flight which is matching to your requirement in this route on the dates you have provided.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Most welcome. Thank you for choosing our travel agency.