You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I would like to meet my friend at New York, will you help me in booking the flight ticket from CLT to JFK?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my planned journey dates are from 11/04 to 11/06.

ASSISTANT: May I know your name?

USER: Ok, my name is Melissa Gonzalez.

ASSISTANT: Sorry, no flights found on your route to reserve your ticket.

USER: Ok, not an issue. Thank you for helping me.

ASSISTANT: Thank you for reaching us.