You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am trying to book a flight ticket from MSP to SFO. Can you help me?

ASSISTANT: Sure, please provide your trip dates also.

USER: I am willing to travel on  dates of 03/26 and 03/28.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no flight for you on your route.

USER: It's ok, thank you.

ASSISTANT: May I know your name for documentation purpose?

USER: My  name is Katherine Gonzalez.

ASSISTANT: Thanks for consulting us.

USER: You are welcome.