You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Clark.

ASSISTANT: How can I guide you today?

USER: I planned to attend for a wedding in JFK, can you please help me to book a flight ticket from IAH?

ASSISTANT: sure, I am glad to help you in booking. Can I have your travel dates please?

USER: I prefer to travel on 02/26 and 02/28.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Welcome, thank you for opting us.