You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to taste and learn different varieties of food at Phoenix, AZ - PHX. Can you help me to book a connecting flight?

ASSISTANT: Sure, can you please mention your travel dates and source code?

USER: My source is at San Francisco, CA - SFO. I want to fly on 03/01 and return on 03/03.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: May I know your name please?

USER: I am Sarah Smith.

ASSISTANT: Sorry there is no connecting flight found  matching with your requirements.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.