You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am Elizabeth Martin. I am planning to visit Houston museum of natural science located at Houston TX-IAH. Can you please aid me in making an airline reservation from NY-EWR?

ASSISTANT: Sure, we are here to help you. Let me know your planned dates to travel.

USER: My planned dates are 12/31 and 01/02.

ASSISTANT: Ok, how much can you pay for this reservation?

USER: I can pay upto 500.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that we don't have flights on your dates.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.