You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket to Orlando MCO, help me in booking my flight ticket from Phoenix PHX.

ASSISTANT: Sure, please share your trip dates.

USER: My trip dates will be Apr 16 to Apr 18.

ASSISTANT: For booking we need your good name, please share it.

USER: Please book my flight ticket with name John Johnson.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: That's fine, I will go with other alternative. Thank you for your effort.

ASSISTANT: Thanks for your information.