You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: Can you please help me to reserve a plane ticket with the name Andrew Baker?

ASSISTANT: Do you need a lay by in between the journey?

USER: I am happy for your quick response. I need a single lay by in between my journey.

ASSISTANT: Ok, may I know your travelling dates please?

USER: The desired travel dates are July 12 and July 14.

ASSISTANT: Can I know your corresponding airport codes?

USER: The origin and destination airport codes are SFO and AUS.

ASSISTANT: Do you have any other preferences?

USER: Yes, I am looking for a flight which is to be departing in the afternoon time.

ASSISTANT: There are no flights found on your requested dates. Thank you for reaching us.

USER: Oh! It is sad to hear from your end. I will choose some other source to travel. Anyways thank you for searching the flights.

ASSISTANT: Thank you.