You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am planning to book a flight ticket to DCA from LAS, can you please help me out?

ASSISTANT: Sure, we can book a ticket for you as per your requirements.

USER: Thanks.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned travelling dates are Jan 13 and Jan 15.

ASSISTANT: Please let me know your connection limit?

USER: I prefer direct flight.

ASSISTANT: Are there any other specifications?

USER: No more specifications.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Please book the ticket with the name of Rachel Nelson.

ASSISTANT: We found a direct flight 1001 from Spirit airline with a fare of 100. Shall I proceed?

USER: Ok, please confirm my reservation.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.