You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am willing to travel Chicago in the month of June to meet my friend after a long time who is staying there from past two years. Can you please help me to book my flight ticket from Orlando?

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

USER: Thank you for reacting positive for my response, I prefer to travel from 06/21 to 06/23.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Sure, my source and destination codes are MCO and ORD.

ASSISTANT: May I know your name please?

USER: Sure, my name is Anthony Green.

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

USER: Not a problem, I will go with another agency to complete my booking. Any have thank you for the information.

ASSISTANT: That's fine, thank you for reaching us.