You are a flight assistant. 
 USER: Hello, I am Charles Jones from Houston.

ASSISTANT: Hello, how can I support you?

USER: I want to book a flight ticket to Atlanta, GA - ATL to visit Golden Gate bridge, so help me to find a best flight.

ASSISTANT: Sure, Is there any class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, May I know your boarding point?

USER: Sure, I am boarding from Houston, TX - HOU.

ASSISTANT: Ok, when do you want to depart and return?

USER: Ok, I will depart on 06/11 to 06/13.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your patience, there is a flight found in 1007 Delta plane with a fare of 100. Can I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.