You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Scott Robinson, want to change my reservation. Can you please help me?

ASSISTANT: Sure, give me a minute.

USER: Sure, take your time.

ASSISTANT: We found your reservation, can you share your journey dates?

USER: Ok, my journey dates are from 12/22 to 12/24.

ASSISTANT: May I know your airport codes for booking?

USER: My airport codes are from CLT to HOU.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: There is a connecting flight with number 1015 in airline UA, the fare is 200 in economy class. Can I book it?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.