You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Elizabeth Martinez. Please book a flight ticket on dates are 07/11 and 07/13.

ASSISTANT: Sure, may I know your airport codes?

USER:    My airport codes are MCO and PHX.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any preferences?

USER: I want to return at afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say that there were no flights found on your preferred dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for contacting us.