You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Jerry Evans. I would like to book a flight ticket from LAS to SFO.

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

USER: I am planning to start on 09/09 and return back on 09/11. Please check with single connection flight.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you and have a nice day.