You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to travel to DTW for my business trip, can you please reserve my ticket from JFK?

ASSISTANT: Sure, may I know your dates of travel?

USER: Sure, my travelling dates are from Jul, 07 to Jul, 09.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight to travel.

ASSISTANT: Is there any other specifications?

USER: Yes, I prefer to travel in business class.

ASSISTANT: May I know your name?

USER: Sure, my name is Sandra Martin here.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait.

ASSISTANT: Sorry, there were no flights found on your specifications.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.