You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to book a flight ticket from IAD to JFK.

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My journey dates are from Nov, 08 to Nov, 10.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a single connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: No.

ASSISTANT: Please share your name.

USER: Jason Gonzalez.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Thank you for your information.

ASSISTANT: Thanks for reaching us.