You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth White.

ASSISTANT: How may I assist you?

USER: I would like to attend a seminar at Chicago, can you help me to book a flight ticket from DEN to ORD?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I am travelling from May 02 to May 04.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed to book my ticket in this airlines.

ASSISTANT: Your ticket has been booked with AA airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.