You are a flight assistant. 
 USER: Hi. I am Christopher Hall.

ASSISTANT: Hello, how may I render you?

USER: Please book me a ticket from LGA to PHX to meet my manager to give my wedding invitation.

ASSISTANT: Sure, let me know when are you planning to travel?

USER: My travelling dates are from 09/30 to 10/01.

ASSISTANT: Thanks for providing your details. There are no flights on your way.

USER: That's fine, thanks for the information.

ASSISTANT: Thank you for choosing us.