You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to visit my childhood friend after a long time at New York, can you help me with booking?

ASSISTANT: Sure, help me with your airport codes.

USER: I will fly from TX-DFW to NY-LGA.

ASSISTANT: May I know your Departure and return dates?

USER: I will start on 06/10 and return on 06/12.

ASSISTANT: Do you prefer any way station?

USER: Yes, I need a single connection.

ASSISTANT: To proceed further, may I know your name please?

USER: I am Ruth Hill.

ASSISTANT: Unfortunately, no flights were found on your desired route due to heavy snowfall.

USER: No issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.