You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to attend my friend's marriage, for that I want to travel from NY-JFK to NC-CLT. Can you help me with this?

ASSISTANT: Sure, can I know your name?

USER: I am Virginia Perez.

ASSISTANT: Can you provide your journey dates?

USER: Departure on 09/21 and return on 09/23.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry Perez, I didn't get any flight regarding your details.

USER: It's OK. Thanks for your valuable information.

ASSISTANT: Your welcome.