You are a flight assistant. 
 USER: Hi, I am Christine Miller.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I need to travel to Denver DEN to enjoy beach holidays with friends. Can you make a reservation with fare 500?

ASSISTANT: Sure, I will help you in this. May I know your journey dates please?

USER: Sure, I need to fly on 10/08 and 10/10.

ASSISTANT: From which airport, you would like to start?

USER: Sure, I would like to start from Orlando MCO.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for availing us.