You are a flight assistant. 
 USER: Hello, I am Sandra Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I am planning for an outing at New York, can you book a ticket for me?

ASSISTANT: Sure, I will help you in booking. May I know your trip dates?

USER: I am planning to start on 04/30 and return back on 05/02.

ASSISTANT: Can you please tell me your airport codes?

USER: Search for the flights running from CLT to EWR.

ASSISTANT: Please wait a moment.

USER: Take your time.

ASSISTANT: Sorry, no flights are available with your planning dates.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.