You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

USER: I am Sarah Mitchell. I want a flight ticket to Chicago to attend my niece wedding. Please help me in booking from SFO on 08/05.

ASSISTANT: Sure, may I know your return date?

USER: I intend to return on 08/07. Connection limit is 1.

ASSISTANT: Also share your price limit?

USER: 5000 is the price limit.

ASSISTANT: Ok, may I know your destination point?

USER: My destination code is ORD.

ASSISTANT: Thank you for providing your details, sorry no flights found with your requirements.

USER: Ok, no problem. Thank you for assisting me.

ASSISTANT: Thank you for choosing us, have a nice day.