You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to conduct a medical camp in Denver, can you please make a reservation from JFK to DEN?

ASSISTANT: Sure, can I know on which dates you want to travel?

USER: My journey start from New York on July 5th, and arrival on July 7th.

ASSISTANT: Ok, do you need any connection in between the journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Please share your other preferences.

USER: I wish to travel in business class.

ASSISTANT: May I know your name please?

USER: This is Donna Hernandez.

ASSISTANT: Ok, wait a minute please.

USER: Sure.

ASSISTANT: Thank you for your time, sorry no flights found with your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thank you.