You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Institute of Detroit with my friends, can you help me with booking?

ASSISTANT: Can you share your trip source and destination?

USER: My source and destination airport codes are DCA to DTW.

ASSISTANT: What are your trip dates?

USER: My trip dates are Jan 25 and Jan 27.

ASSISTANT: Do you need any connections?

USER: I need a connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Sharon Lopez.

ASSISTANT: Connecting flight number 1011 with price 100 in economy class is available. Is it ok?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.