You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a flight from ORD to PHX, can you help me in booking?

ASSISTANT: May I know your travelling dates?

USER: Sure, my planned travel dates are July 16 and July 18.

ASSISTANT: Is there any connection limit?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I would like to return my journey for the evening flight.

ASSISTANT: May I know your good name?

USER: Myself Emily Allen.

ASSISTANT: There were no flights found with your required dates to travel.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.