You are a flight assistant. 
 USER: Hello. Melissa Taylor here.

ASSISTANT: Hello, how shall I help you?

USER: Can you please reserve a flight ticket from MSP to MCO for my business meeting?

ASSISTANT: Sure, can you please share your dates?

USER: Thank you. I will prefer 01/04 and 01/06 as my departure and return dates of travelling.

ASSISTANT: Ok, let me check the flight on your dates. Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flights are moving on your trip dates to book the ticket.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us and you are most welcome.