You are a flight assistant. 
 USER: Hello, I am Janet Collins.

ASSISTANT: Hello, how can I provide assistance to you?

USER: As I am having an important meeting to attend at Denver- DEN, Could you please book a ticket with fare 500 to reach there?

ASSISTANT: Sure, let me know your boarding airport code.

USER: My boarding point is Philadelphia, PHL.

ASSISTANT: Do you need a connecting flight?

USER: I prefer to travel with single connecting flight.

ASSISTANT: May I know when are you planning to travel?

USER: My travelling dates are from 03/14 to 03/16.

ASSISTANT: Please wait for a while, I will search flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight found that matches your requirements.

USER: Please share the details.

ASSISTANT: Airline:Delta, flight number :1027 with price 200 and a lay by.

USER: Please proceed with booking.

ASSISTANT: Your reservation has been successfully done.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.