You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book a flight ticket from LAS to ORD?

ASSISTANT: Can I know your travelling dates?

USER: I planned my trip on the dates Mar 13 and Mar 15.

ASSISTANT: Please let me know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other preference?

USER: No, other preferences.

ASSISTANT: May I know your name?

USER: Myself Emily Jackson.

ASSISTANT: Delta Airline is providing ticket in economy class with ticket fare 100 and 1001 as flight number in connecting flight. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.