You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from IAD to SFO. Could you help me?

ASSISTANT: Sure, Let me know your planned dates.

USER: My travelling dates are from July 02 - 04.

ASSISTANT: Ok, may I know your name please?

USER: Rachel Hill.

ASSISTANT: Do you have any other requirements?

USER: I prefer for connecting flight.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We found a flight in 1027 American Airline with a fare of 100. Can I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you.

ASSISTANT: Thank you.