You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I want to book a ticket from DFW to SEA to attend for a live concert.

ASSISTANT: Sure, can you please share your journey dates?

USER: My travelling dates are Dec 9 and Dec 11.

ASSISTANT: May I know your name please?

USER: I am Andrew Johnson.

ASSISTANT: Can you please mention your connection limit?

USER: I want single connected flight.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: We found a Delta airlines, flight number 1000, and the fare of 200 in economy class. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you.

ASSISTANT: Thank you for approaching us.