You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: My life were bored with daily schedule, so I want to make my mind refresh. I have decided to go a tour to Washington. Can you help me with booking?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 10/02 and 10/04.

ASSISTANT: Can you please provide me your airport codes?

USER: Sure, my preferable airport codes are starting at DTW and landing at IAD.

ASSISTANT: On which name would like to book this ticket?

USER: You need to book ticket with name Paul Mitchell.

ASSISTANT: Do you have any specification?

USER: Yes, I need a connecting flight under fare of 200.

ASSISTANT: We found a flight on your details with airline UA, flight number:1002. Shall I book this ticket?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you.