You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am William Baker.

ASSISTANT: How can I aid you?

USER: I need to book a flight ticket from IAH to IAD, Can you please help me for booking?

ASSISTANT: Sure. Can I know your travelling dates?

USER: I would like to travel on 06/20 to 06/22.

ASSISTANT: Do you need any break?

USER: I need a connecting flight.

ASSISTANT: We found a Hawaiian airline, flight number:1017 and the price is 200.

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.