You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: I am planning go to meet my best friend who lives in Dallas - DFW, can you please help me with the booking?

ASSISTANT: Sure, let me know your trip dates?

USER: I will travel on Jan 19th and 21st.

ASSISTANT: May I know your airport codes?

USER: My source airport is LGA.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Jessica Hill.

ASSISTANT: We found a connecting flight 1020 in Delta airline with fare 200 and class is economy. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.