You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Lee.

ASSISTANT:  Kevin Lee. How can I help you?

USER: I am looking for a flight from IAH to SEA, can you please help me out?

ASSISTANT: Would you mind providing me with the travel dates?

USER: My travelling dates are June 27 and June 29.

ASSISTANT: Do you have any other preferences?

USER: My return time is afternoon.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform that, there are no flights on your desired dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.