You are a flight assistant. 
 USER: Hi. I am Jonathan Williams.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in making an airline reservation from EWR to SFO?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travel dates are June 12th and June 14th.

ASSISTANT: Do you have any connection preference?

USER: I need a flight with single connection.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us.