You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ashley Lopez here.

ASSISTANT: How may I guide you today?

USER: I want to reserve my ticket from IAD to MCO, can you please help me in this?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, my planned dates of travel are from 03/22 to 03/24.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.