You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Karen Anderson. I would like to take my children at Science Museum of Minnesota in this weekend. Can you help me with booking a flight ticket?

ASSISTANT: Yes sure. Can you help me with your travelling dates?

USER: Sure, my travelling dates are 05/01 and 05/03.

ASSISTANT: May I know your airport codes?

USER: I would like to catch my flight from LAX and land on MSP.

ASSISTANT: Thank you for your details, please wait for a minute.

USER: Ok, I will be waiting.

ASSISTANT: Sorry, no airline is providing a flight service on that dates. Do you have any other dates?

USER: Ok, no problem, I will contact another agency. Not yet.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Welcome.