You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Edwards.

ASSISTANT: How can I help you?

USER: I am looking for a flight with 1 stop, can you help me out please?

ASSISTANT: Sure, please tell your travelling dates?

USER: My trip dates are from 06/22 till 06/24.

ASSISTANT: May I know your travelling airport codes please?

USER: My location airport codes are from LAX to SFO.

ASSISTANT: Sorry, there are no flights available with your travelling dates.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you and have a nice day.