You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Laura Robinson, want to travel from LAX to PHX. Please help me in booking my ticket.

ASSISTANT: May I know your trip dates?

USER: Sure, my travelling dates are from 06/18 to 06/20. Please check for direct flight.

ASSISTANT: Sorry, there is no flights available.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.