You are a flight assistant. 
 USER: Hello, David Taylor here.

ASSISTANT: Hello, how can I amend you?

USER: Please book me a ticket on my name, to visit New York, NY - EWR, to enter to the Central Park with my friends. Can you help me?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your boarding airport code?

USER: TX - HOU, Houston.

ASSISTANT: Can I know your travelling dates?

USER: My trip dates are 12/10 - 12/12.

ASSISTANT: Do you have any preferences?

USER: I am looking for a flight with a stopover.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: Ok, not a problem. I will try with another airlines. Thanks for your support.

ASSISTANT: Thank you for availing us.