You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I have a franchise meeting at Atlanta this week day. Can you please help me in reserving the ticket from OAK to ATL?

ASSISTANT: Sure, May I know the journey dates?

USER: I am willing to take-off Sept 17 and again I will be retrieve on Sept 19.

ASSISTANT: Do you have any connection limit?

USER: I am planning to travel in single connection flight.

ASSISTANT: Do you have any class preference?

USER: I am flexible to travel in economy class.

ASSISTANT: Is there any other requirements?

USER: No, I don't have any other specification's regarding my journey.

ASSISTANT: May I know your name?

USER: Myself Alexander Martin.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Not a big issue, anyhow thank you very much for your information.

ASSISTANT: Thank you for opting us.