You are a flight assistant. 
 USER: Hello, I am Helen Wright.

ASSISTANT: Hello. Helen Wright. How may I help you?

USER: Can you please help me to book a flight ticket from JFK to DEN?

ASSISTANT: Sure, Can you provide me with the travel dates?

USER: My travel dates are Aug 27 to Aug 29.

ASSISTANT: Can I have a moment please?

USER: Sure.

ASSISTANT: Spirit airlines is providing service on your route with a single connection.

USER: Ok, proceed to book.

ASSISTANT: Your ticket is booked in the economy class with the cost of 200.

USER: Thank you.

ASSISTANT: Thank you for approaching us.