You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Christopher Nelson. Please reserve a seat from HOU to DEN for attend an interview.

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are from July 15 to July 17.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Christopher Nelson, there is a flight available with price 100 and the connection is 1 with Frontier airline. Would you like me to proceed with the booking?

USER: Ok, Please proceed to book.

ASSISTANT: Your booking is confirmed with 1002 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.