You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I am Christopher Martinez, can you help me to book a flight with 1 connection limit?

ASSISTANT: Sure, I will search for that one, can you provide your preferable dates?

USER: My journey dates are 08/12 and 08/14.

ASSISTANT: May I know your airport regional codes?

USER: My airport codes are SFO and AUS.

ASSISTANT: Thank you for your information. I am unable to find the flight on the trip dates which you have provided.

USER: That is fine.

ASSISTANT: Welcome.

USER: Thank you for your time.