You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please give me your full name? Do you want me to help you with anything?

USER: My name is Joshua Harris. Can you please help me to book my ticket?

ASSISTANT: Sure, I am happy to help you. Sure, can you please help me with the codes of the airport, where you planned to catch the flight and land?

USER: I want to travel from SEA to LAS, as I have a project meeting.

ASSISTANT: On which date you are planning to visit?

USER: My trip dates are from 06/08 to 06/10.

ASSISTANT: Sure, give me a minute.

USER: Sure, take your time.

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

USER: Sure, I will find an another way to travel. Thank you for checking.

ASSISTANT: Thank you.