You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to meet my sister. Can you help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are 09/08and 08/10.

ASSISTANT: Can I know your airport codes?

USER: My airport codes are CA-LAX to MN-MSP.

ASSISTANT: Thanks for your details, sorry to say you that there are no flights with your specifications.

USER: Ok, no issues.

ASSISTANT: Can I have your name?

USER: I am Emily Johnson.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.