You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to meet my friend after a long time at Denver. Can you help me with booking a connecting flight?

ASSISTANT: Yes, I am here to help you. What are your preferred airport codes to travel?

USER: My airport codes are FL-MCO to CO-DEN.

ASSISTANT: May I know your planned dates of journey?

USER: I will fly on 04/13 and intend to return on 04/15.

ASSISTANT: Sorry you don't have any flights on your planned dates.

USER: Ok, no problem.

ASSISTANT: May I know your name?

USER: Thank you for your quick response. Patricia Nelson. Thank you.

ASSISTANT: Thank you for approaching us.