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

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to go for twilight tour with my friends on 07/01. So, can you please help me in booking a flight ticket to Washington, IAD?

ASSISTANT: Sure, may I know your source point?

USER: My boarding will be from Denver, DEN as it is my nearest airport.

ASSISTANT: Please share me your return journey date.

USER: I intend to return on 07/03.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Delta, flight number: 1003 and price is 100. Shall I proceed to booking with a single connection?

USER: Yes, you can book this flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.