You are a flight assistant. 
 USER: Hi, I am Paul Williams.

ASSISTANT: Hello Paul, how may I aid you?

USER: I want to attend my grand father Burial service at San Francisco, can you help me to book a connecting flight?

ASSISTANT: Sure, please provide me your location codes.

USER: My source is at Austin, TX - AUS and destination is at CA - SFO.

ASSISTANT: Share your travel dates please?

USER: I want to fly on 01/30 and return on 02/01.

ASSISTANT: Please, wait a moment.

USER: Sure.

ASSISTANT: Here in my search with your request, no flights are available.

USER: Ok, no issues. Thanks for your help and support.

ASSISTANT: Sorry for inconvenience. Welcome, thank you for choosing us.