You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Amy Walker.

ASSISTANT: OK.

USER: I want to attend business meeting at Chicago, ORD. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please mention your travelling dates?

USER: Sure, My travelling dates are from 11/14 to 11/16.

ASSISTANT: Help me with your source code?

USER: I am boarding at Washington, IAD.

ASSISTANT: OK, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: Sorry to say inform you, there are no flights found with your specifications.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thank you for reaching us, have a good day.