You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Pamela Adams. I want to book a flight ticket to attend my friend birthday party in Houston. Could you help me in booking a flight ticket with a price limit of 1000?

ASSISTANT: Sure, I am here to help you. Please share me your travelling dates?

USER: I would like to fly on 10/25 and return on 10/27.

ASSISTANT: Kindly share me your airport codes?

USER: My source is Washington DC - DCA and destination is TX - HOU.

ASSISTANT: There is a connecting flight with price of 200 and flight number is 1001. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed with 1001 flight.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us.