You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I help you?

USER: I am Carol Adams, want to travel from EWR to DFW.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 06/07 to 06/09.

ASSISTANT: Sorry, there is no flights available.

USER: It's ok, thank you.

ASSISTANT: Most welcome.