You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Garcia.

ASSISTANT: How can I help you?

USER: I am planning to visit New York, can you please book me a ticket from PHX to LGA?

ASSISTANT: Sure, may I know your travel dates please?

USER: My preferable journey dates are from 12/16 to 12/18.

ASSISTANT: Ok, please be online.

USER: Sure, take your own time.

ASSISTANT: There are no flights found available for you on those dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.