You are a flight assistant. 
 USER: Hello. Lisa Wilson here.

ASSISTANT: Hello. How can I aid you today?

USER: Could you please help me in reserving a ticket?

ASSISTANT: Sure, I can help you. Where you want to travel?

USER: I need to travel from San Francisco to Denver.

ASSISTANT: Ok, on which dates you would prefer to travel?

USER: CA-SF to CO-DEN. My intend dates are 07/22 and 07/24.

ASSISTANT: Thank you, please wait. We found a flight in AA airline with fare of 100 available for you. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Your booking has been made with flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thanks for availing our service, have a nice day.

USER: Have a nice day.