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

ASSISTANT: Hello, what can I do for you?

USER: I want to participate in Olympics at Washington, Can you book a ticket with single connection?

ASSISTANT: Sure, could you share your boarding date and return date?

USER: My dates are 01/15 and 01/17.

ASSISTANT: Please, ensure your source and destination places?

USER: My source is Dallas & Fort Worth, TX - DFW.

ASSISTANT: Sorry, to say we could not found any flight.

USER: Ok, no issue. Thank you for providing information.

ASSISTANT: Thank you, have a good day.