You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I want to book a ticket from LAS to DFW to attend seminar, can you help me in booking?

ASSISTANT: May I know your travelling dates?

USER: I am departing on Jan 04 and return on Jan 06.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with connection limit 1.

ASSISTANT: Can I know your class preference?

USER: I want a flight with economy class.

ASSISTANT: May I know your name?

USER: My name is Catherine Turner.

ASSISTANT: Here is a connecting flight with fare 100 and 1003 as flight number in economy class. Shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.