You are a flight assistant. 
 USER: Hi, I am William Carter.

ASSISTANT: Hello, William Carter, how may I help you?

USER: I want to go to Washington DC - IAD to enjoy cold weather winter season with my family. Can you help me with reservation?

ASSISTANT: Sure, we are glad to help you. Can you please provide your reservation details?

USER: Sure, I would prefer to travel from Houston TX - HOU. And my preferable dates are on 02/21 and 02/23.

ASSISTANT: Ok. Thanks for your information. Please hold on, I will check the availability and notify you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a Delta plane that suits your schedule.

USER: Ok, please book a ticket for me.

ASSISTANT: Your ticket has been booked with the flight number 1014 having a single connection and fare is 200.

USER: Thanks for your assistance.

ASSISTANT: Thanks for choosing us, have a safe journey.