You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Joshua Rodriguez. I would like to travel from SFO to CLT to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My travelling dates are from 02/11 till 02/1. Sorry, my return date is on 02/13.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.