You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your service?

USER: I am Rebbeca Hall, I need a flight from Denver airport DEN to Washington airport IAD to meet my brother. Can you help me to book a connecting flight?

ASSISTANT: Sure, how much can you afford for the flight ticket?

USER: My budget is 500 for flight ticket.

ASSISTANT: Can you help me with your journey dates please?

USER: I plan to travel on 08/05 and return on 08/07.

ASSISTANT: Ok, give me a minute.

USER: Sure.

ASSISTANT: We found a Hawaiian airline with flight number 1014 and price of 100.

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.