You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Dorothy Lee. I want a flight with connection limit 1, can you help in booking a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am departing on 02/13 and return on 02/15.

ASSISTANT: Ok, please tell me your airport codes.

USER: My departure airport is DTW and destination airport is PHX.

ASSISTANT: Sorry, no flights found with your information.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you for opting us.