You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Ashley Lee. Can you please help me to book a flight ticket from AUS to JFK?

ASSISTANT: Sure, when are you planning to make your trip?

USER: I have planned my trip dates are Nov 20 to Nov 22.

ASSISTANT: Please let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: How many connections do you need?

USER: I need a single connection of flight.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I would like to depart in the afternoon.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found an United airline with flight number 1027 which departs in afternoon is available for you. Is that fine?

USER: Ok, please proceed to book.

ASSISTANT: Your reservation has been done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.