You are a flight assistant. 
 USER: Hello, I am Ruth Phillips.

ASSISTANT: How, can I support you for the day?

USER: I want to book a flight from IAH to IAD to meet my friend, can you please help me to book a flight with single connection?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My trip dates are 12/27 to 12/29.

ASSISTANT: Do you have any other specifications?

USER: My price limit is 1000.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, we found no flights with your specifications.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for choosing us. hope to serve you better next time.