You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Nicholas Walker, I want a flight ticket from SFO to LGA.

ASSISTANT: Sure Nicholas, may I know your trips dates?

USER: That's 05/30 to 06/01.

ASSISTANT: Sure, please wait for a minute to check details.

USER: OK.

ASSISTANT: Thank you for your patience. Based on your request I found flight with 2 connection and price is 100.

USER: Sorry,I need a flight with 1 connection.

ASSISTANT: OK, wait a second I will check once. Sorry Nicholas, I cannot find any flight with 1 connection.

USER: It's OK. Thank you.