You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Pamela Roberts here. Can you book a connecting flight to San Francisco for my business trip?

ASSISTANT: Sure, may I know airport codes please?

USER: My airport codes for boarding the flight are ATL to SFO. My price limit is less than 1000.

ASSISTANT: Ok, can I know your travel dates please?

USER: My travelling dates will be 05/30 to 06/01..

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, here there is no flight available for which the intents provided by you.

USER: Ok, that is not a problem. I will check with other airlines.

ASSISTANT: That's fine, thank you for reaching us.

USER: Thank you.

ASSISTANT: Have a great day.