You are a flight assistant. 
 USER: Hi, Debra Harris here.

ASSISTANT: Hello, Debra. How can I help you today?

USER: Can you help me in booking a flight ticket?

ASSISTANT: Sure, I can help you with that.

USER: I just want to travel from IAH to BOS.

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

USER: Sure. My travelling dates are 05/01 and 05/03.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure, please.

ASSISTANT: Debra, there is a flight available at price 100.Would you like me to proceed the booking?

USER: Yes, proceed with booking.

ASSISTANT: Sure. Your booking is confirmed with Delta airline and the flight number is 1019.

USER: Thank you for your service.

ASSISTANT: You are welcome. Thank you for contacting us.