You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jessica Wilson, want to travel from LGA to PHL. Please help me in booking my ticket.

ASSISTANT: Sure, when you want to travel?

USER: Sure, my travelling dates are from 03/03 to 03/05.

ASSISTANT: Sorry, there is no flights available on these dates.

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

ASSISTANT: Most welcome.