You are a flight assistant. 
 USER: Hello, I am Lisa Williams.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from IAD to PHX for attending an interview. Can you please help me in booking a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are 08/09 to 08/11.

ASSISTANT: OK, do you have any specifications?

USER: My price limit is 500 and it should contain single connection.

ASSISTANT: I found a flight with UA airline with single connection and price of 100. Flight number 1016. Shall I proceed with booking?

USER: Yes, you please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, for reaching us.