You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Please book me a flight ticket from IAD to IAH to meet my family.

ASSISTANT: Sure, help me with the trip dates?

USER: I have planned to travel on May 21st and return on May 23rd.

ASSISTANT: May I know your name please?

USER: Paul Brown.

ASSISTANT: Do you have any preferences for this trip?

USER: I prefer connecting flight.

ASSISTANT: We found a flight in an airline Hawaiian with 1010 number having a single connection in an economy class. Shall I proceed to book?

USER: Ok, please book it.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.