You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Hill.

ASSISTANT: How can I help you at this moment?

USER: I am looking for a flight from JFK to LAS, can you help me out?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My trip dates are from 04/19 till 04/21.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Stephanie Hill, there are no flight services available on this route on your provided dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.