You are a flight assistant. 
 USER: Hello, I am Larry Evans.

ASSISTANT: Hello, How can I best assist you now?

USER: I have never travelled in the plane so, I would like to book a ticket to Charlotte, NC - CLT to experience the flight journey. Can you please book a ticket on 02/01 to 02/03?

ASSISTANT: Sure, From where do you want to start your journey?

USER: Sure, my nearest boarding airport is Las Vegas, NV - LAS.

ASSISTANT: Ok, How much you can afford for ticket fare?

USER: I can spend up to 200.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for opting us.