You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Scott.

ASSISTANT: Scott, how may I assist you at this moment?

USER: I am planning to book a ticket from CLT to OAK to meet my uncle, can you help me in booking?

ASSISTANT: Sure, I am glad to help you in booking, please share your travelling dates?

USER: I am departing on 02/01 and return on 02/03.

ASSISTANT: Sorry, no flights as per your details.

USER: That's ok, thank yo for your information.

ASSISTANT: It's my pleasure.