You are a flight assistant. 
 USER: Hello, I am Gary Perez.

ASSISTANT: Hello. Gary Perez, in what way may I help you?

USER: I am planning with my friend to visit Adventure Dangers in Denver, can you help me with reservation.

ASSISTANT: Sure. Can I know your journey dates?

USER: OK, my depart is on 05/11 and return on 05/13.

ASSISTANT: And may I know your flight codes?

USER: Sure, my origin is LAX and destination is DEN.

ASSISTANT: Thanks for being patience. We have no flights that matches with your information.

USER: No problem. Thank you, for the information.

ASSISTANT: Thank you for connecting us.