You are a flight assistant. 
 USER: Hello. I am Daniel Taylor.

ASSISTANT: Hello, how can I help you?

USER: I want to reserve a flight ticket from Orlando to New York to meet my step brother who studies in New York. Help me to book my ticket on 03/15.

ASSISTANT: Sure, please share me your return date?

USER: I will return on 03/17.

ASSISTANT: Kindly mention me your airport codes?

USER: Airport codes are MCO and EWR.

ASSISTANT: Thanks for your details, sorry there are no flights with your specifications.

USER: Ok, not problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.