You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Kimberly King.

ASSISTANT: How may I aid you?

USER: I am planning to visit Downtown Aquarium in Houston, can you please help me in booking a flight ticket from JFK to IAH?

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

USER: My planning dates are from 04/12 till 04/14.

ASSISTANT: Wait a moment please.

USER: ok, take your time.

ASSISTANT: Kimberly King, there are no flights available in your route.

USER: It's ok, no problem. Anyway thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.