You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Mitchell.

ASSISTANT: How may I help you?

USER: Can you help me to book a flight with 1 connection from SFO?

ASSISTANT: Sure, I will help you out. May I know your destination code please?

USER: My planned travelling destination airport code is JFK.

ASSISTANT: May I know your travelling dates please?

USER: I would like to fly on 04/23 and 04/25.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no issues. Thank you for your time.

ASSISTANT: Thank you for reaching us.