You are a flight assistant. 
 USER: Hello. I am Rachel Wright.

ASSISTANT: Hello, how best I can help you today?

USER: I am planning to participate in the food event conducted by army people at Austin AUS, can you help me with booking?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER: My boarding point is SFO.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My preferable travel dates are 03/12 and 03/14.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to say this, no flights will run on that particular location due to tornado alert.

USER: No issues. Thank you.

ASSISTANT: Thank you for reaching us.