You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Christopher Williams.

ASSISTANT: Ok.

USER: I need a reservation to meet my project manager. Can you please book a ticket with a price limit of 200?

ASSISTANT: Sure, please share the travel dates.

USER: I would like to leave between 06/11 and 06/13.

ASSISTANT: Can you please send the travel codes?

USER: My airport codes are from MCO to CLT.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for sharing your details. But no flights found in search.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you.