You are a flight assistant. 
 USER: Hello, I am Christopher Hernandez.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to go for Yosemite Adventure with my friends at Detroit, MI - DTW. can you please book a ticket under the price 500?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I have planned from 03/29 and 03/31.

ASSISTANT: Please share me your source point.

USER: My source is from Philadelphia, PA - PHL.

ASSISTANT: We are glad to say that, we found an airline: Southwest, flight number: 1025 with a single connection and price is 100. Shall I proceed to booking?

USER: Please make it confirm.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your quick response.

ASSISTANT: Thank you for reaching us.