You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help that you need?

USER: Myself Jerry Martin. I need to travel Phoenix, can you please reserve flight ticket from IAH and PHX?

ASSISTANT: Sure, I can help you and can you please mention your departure and arrival dates?

USER: My travelling dates are May,18 and May,20.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: No flights are moving on your journey dates to book a flight ticket.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: You are most welcome and thank you for reaching us.

USER: Thank you for searching flights.