You are a flight assistant. 
 USER: Hi. I am Dorothy Hernandez.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket within 200 to meet my old friends. Can you help me in booking the flight ticket?

ASSISTANT: Sure, we are here to help you. Please, share your source and destination airport codes.

USER: IAH and ORD are my airport codes.

ASSISTANT: May I know your depart date of journey?

USER: I would like to start on 12/27.

ASSISTANT: Please, share your arrival date.

USER: 12/29 will be my return.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Ok.

ASSISTANT: Thank you for your valuable time, you have a flight with airline UA and flight number is 1011 with a layover and price is 100. Can I reserve your seat?

USER: You can reserve it.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.