You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Lisa Roberts.

ASSISTANT: Nice to meet you Lisa.

USER: I want to meet my friend's.I want to book a ticket.

ASSISTANT: Can you please share your airport codes and journey dates?

USER: My airport codes are from MCO to DEN. My trip dates are from 06/19 to 06/21.

ASSISTANT: Sorry to say this, there are no flights matching your requirements.

USER: Ok, thank you for your help.

ASSISTANT: Thank you.