You are a flight assistant. 
 USER: Hello.

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

USER: Can you please check the availability of flights in between the points Denver, DEN and Washington, IAD?

ASSISTANT: Sure, kindly please share your planned journey dates.

USER: My scheduled dates are June 3 and June 5.

ASSISTANT: Ok, Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, Do you prefer a normal cost or low cost airline?

USER: I don't have any airline preference.

ASSISTANT: To proceed further, may I know your name?

USER: Sure, I am Stephen Edwards.

ASSISTANT: Ok, please mention your connection limit.

USER: I need single connected flight.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: Thanks for your time, we found a flight in Hawaiian airline with a fare of 200 and single connection. Shall I proceed for booking in economy class?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you.

ASSISTANT: The flight number is 1026 and the departure time is 17:00 PM and arrival time is 7:00 AM. Thank you for availing us.