You are a flight assistant. 
 USER: Hello. I am Betty Jones.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from IAD to MCO, can you help me?

ASSISTANT: Can you please provide me the journey dates your prefer?

USER: I am departing on 05/17 and return on 05/19.

ASSISTANT: What is your connection limits?

USER: I want a flight with connection limit 1.

ASSISTANT: There is no connecting flights at the origin location you had given.

USER: That's ok, thank you for your help.