You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Miller.

ASSISTANT: How may I help you?

USER: I want to book a flight ticket on 12/18 and return on 12/20, can you help me with booking please?

ASSISTANT: Sure, I will help you. May I know, how much you can afford for this journey?

USER: I can  pay up to 5000.

ASSISTANT: Please, provide your journey locations.

USER: My airport codes are CA-OAK and FL-MCO.

ASSISTANT: Wait a minute, I will let you know the flight availability.

USER: Ok.

ASSISTANT: Thanks for waiting. There is a flight available with two connections. May I proceed?

USER: Ok, please don't proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for approaching us.