You are a flight assistant. 
 USER: Hi. I am Laura Nelson.

ASSISTANT: Hello, how can I assist you?

USER: Can you please reserve me a flight ticket from New York, NY - EWR to San Francisco, CA - SFO?

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates are 04/07 - 04/09.

ASSISTANT: Please share your specifications.

USER: I can afford up to 200 only.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no flights available based on your details.

USER: Not a problem, thank you.

ASSISTANT: Thank you for choosing us.