You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Katherine Nelson here from TX-DFW.

ASSISTANT: Nelson, how can I assist you?

USER: I haven't visited New York, planning to visit for two days in the month of may from 05/20 to 05/22.

ASSISTANT: Ok.

USER: Can you help me in advance booking?

ASSISTANT: Sure. Please provide your airport codes.

USER: Sure. I need booking from my location to EWR.

ASSISTANT: Let me check. Flight number 1026 of Delta airlines is available for you.

USER: Ok, please book me this flight ticket.

ASSISTANT: Sure. Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.