You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Thomas Walker. I have a business meeting in Oakland, can you help me for booking a flight ticket from CLT to OAK?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My planning dates are from 05/27 till 05/29.

ASSISTANT: There is a flight available on your requested dates from Frontier airlines with 2 connecting flight.Shall I confirm your booking?

USER: Please search a flight with single connection.

ASSISTANT: Sorry, there is no flight available for your request.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome.