You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Joseph Garcia here.

ASSISTANT: How may I help you?

USER: I need your help in booking of a flight ticket from MCO to LAX for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Ok, now please share your travel dates?

USER: Sure, my departure is on 04/01 and please book my return ticket also on 04/03.

ASSISTANT: Please wait for a moment. I will check with your details and get back to you.

USER: It's alright, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Thank you.