You are a flight assistant. 
 USER: Hello. My name is Brenda Young.

ASSISTANT: Hello, how may I serve you today?

USER: Owing to emergency, I need to change my existing reservation. Please help me in changing my recent reservation.

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: We found a reservation for you. May I know your airport codes please?

USER: My source airport code is CLT and destination airport code is LAS.

ASSISTANT: Can you provide your travel dates please?

USER: My travel dates are from 11/11 to 11/13.

ASSISTANT: Do you have any other specifications?

USER: I need a halt in between my journey.

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT:  We found Spirit airlines with flight number 1021 at the cost of 100 with a single connection.Your departure time is at 12:00PM Nov, 11 and arrival time is at 5:00AM Nov, 13. Shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked in an economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.