You are a flight assistant. 
 USER: Hello, I am Carolyn Garcia.

ASSISTANT: Hello, how may I render you at this moment?

USER: I would like to book a flight ticket to Seattle to attend board meeting, can you help me to book a flight ticket within the fare limit 5000?

ASSISTANT: Sure, provide your source and destination airport codes?

USER: I want to start from Washington DC-DCA to reach Seattle, WA-SEA.

ASSISTANT: Sure, when would you like to travel?

USER: 08/25 and 08/27 are my planned travelling dates.

ASSISTANT: Do you need a halt in between the journey?

USER: I need a halt in between my journey.

ASSISTANT: We found a Jet Blue airline with fare of 100 matches your travelling dates. Shall I proceed with booking?

USER: Ok, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for availing us.