You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Shirley Jones.

ASSISTANT: How can I aid you?

USER: I need to schedule my trip to visit Houston for next weekend. Could you please help me in booking the ticket from EWR to IAH?

ASSISTANT: Sure, may I know your journey dates please?

USER: I will drop-off 03/16 and again I will be return back on 03/18.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: Shirley Jones, there are no flights available in your route.

USER: Not a big problem, anyhow thank you very much for your help.

ASSISTANT: Thank you for reaching us.