You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit at Orlando to meet my best friend, can you help me to book a flight ticket from SFO to MCO?

ASSISTANT: Sure, may I know your name please?

USER: Richard Garcia.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travelling dates are 30 Jan and return on 01 Feb.

ASSISTANT: Is there any specific class preference for you?

USER: I would like to travel in economy class.

ASSISTANT: May I know your preferable time for journey?

USER: I am ok with any timing.

ASSISTANT: Sorry Garcia, there is no flight found as per your travelling dates.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for reaching us.