You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Raymond Walker here.

ASSISTANT: How may I aid you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please share your travelling dates?

USER: I am planning to move on 12/07 and please book my return ticket on 12/09.

ASSISTANT: Please wait for a minute.

USER: Ok, take your time.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh! Sad to hear that.

ASSISTANT: Thank you for contacting us.

USER: Anyway, thank you for the information.