You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Christine Thompson. I am looking for a flight from LGA to SFO, can you help me in booking?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my planned travel dates are Apr 25 and Apr 27.

ASSISTANT: We found a economy flight on your details with airline Southwest, flight number: 1020. Shall I book this ticket?

USER: I am looking for a connecting flight in an Business class, so please look for it?

ASSISTANT: Please wait a moment, I will check the business class flight.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no business class flight.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you.