You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am  Jennifer Lopez.

ASSISTANT: What type of service do you expect from us?

USER: I want to go for an industrial tour conducting by our college management, can you please book me a ticket from CLT to IAD?

ASSISTANT: Sure, I will do that for you. Can you please tell me your departure and arrival dates?

USER: My travelling dates are 08/12 to 08/14.

ASSISTANT: Ok, can you please wait a minute?

USER: Sure, I will stand by.

ASSISTANT: Sorry to tell you, there is no flight found with the dates you have given to me.

USER: No issue, thank you for your time in checking.

ASSISTANT: My pleasure. Thank you for choosing us.