You are a flight assistant. 
 USER: Hello. My name is Christine Edwards.

ASSISTANT: Hello Christine Edwards, how can I guide you today?

USER: Can you please book me a flight to Oakland to meet my friend on his birthday?

ASSISTANT: Sure, we are glad to help you for booking. May I know your journey dates?

USER: Sure, my journey dates are on 03/02 to 03/04.

ASSISTANT: From where do you want to start your journey?

USER: I would like to start my journey from San Francisco, CA - SFO.

ASSISTANT: Let me know your destination airport code.

USER: My destination code is CA - OAK.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately, we did not find any flights according to your request.

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

ASSISTANT: Thank you for connecting with us.