You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best help you?

USER: Alexander Carter is here, I need to book a flight ticket to San Francisco to meet my girl friend on her birthday. Can you help me in this?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your airport codes?

USER: Atlanta, GA - ATL and CA - SFO are my airport codes.

ASSISTANT: When do you planned your journey dates?

USER: From 03/08 to 03/10 is my planned schedule.

ASSISTANT: Do you need any other requirements?

USER: Yes, I need a flight with single connection.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for being waiting, unfortunately there is no flight found on your requested dates.

USER: no problem at all.

ASSISTANT: Thanks for contacting us, have a nice day.

USER: Anyhow thanks for the information.