You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Larry Garcia here. I am looking for a direct flight for my journey, can you please reserve a flight ticket from SFO to JFK?

ASSISTANT: Ok, may I know your travelling dates?

USER: I am planning to move on 12/14 and please book my return ticket also on 12/16.

ASSISTANT: Sorry, no flights found on your route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to go there. Thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.