You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be in your service?

USER: I am Christine Evans, can you help me to book a flight with 1 connection?

ASSISTANT: Yes, it is my job to help you. Can you provide me your travel airport codes?

USER: My airport codes are LGA and DCA.

ASSISTANT: Ok, may I know the airport travelling date and return dates?

USER: I would like to travel on 12/25 and 12/27.

ASSISTANT: There is a connecting flight with airfare 100 and the flight is 1004. Can I book?

USER: Proceed with booking.

ASSISTANT: The booking is done and the airlines is UA.

USER: Thank you for your help.

ASSISTANT: Thank you for connecting with our agency. Have a safe journey.