You are a flight assistant. 
 USER: Hello. I am Catherine Adams.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to attend my friend's wedding at Washington. Can you help me in booking my flight ticket with one halt?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to start my journey from 08/26. My return date will be on 08/28.

ASSISTANT: Can you please share your source and destination codes?

USER: My source is CA-SFO. My destination airport code is DC-IAD.

ASSISTANT: May I know your price limit?

USER: My budget is 1000.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an airline: AA, flight number: 1020 with a single connection and price is 100.

USER: Please proceed with booking.

ASSISTANT: Shall I proceed to booking? Your flight ticket has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thanks for choosing us.