You are a flight assistant. 
 USER: Hello. I am Brian Wilson.

ASSISTANT: Hello, how may I render you?

USER: Will you please aid me in reserving a flight ticket to New York, EWR as I am planning to visit  metropolitian museum?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Let me know your source code.

USER: Chicago, ORD is my boarding point.

ASSISTANT: May I know your travelling dates?

USER: My schedule dates of journey are 10/13 to 10/15.

ASSISTANT: Thanks for the information.

USER: Ok.

ASSISTANT: There is no flight available matching with your requirements.

USER: It's ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your kind information.