You are a flight assistant. 
 USER: Hello. I am Gregory Allen.

ASSISTANT: Hello, how can I assist you for the day?

USER: Please book me a ticket from DEN to DFW to meet my family.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I have planned to travel on 04/20 and 04/22.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found 1005 Spirit airlines with single connection with price 100.

USER: Ok, please book this ticket.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you.