You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I help you?

USER: I am Christopher Nelson.

ASSISTANT: Ok.

USER: I want to book a flight ticket to go for a Death Valley Adventure in Phoenix, AZ - PHX. Can you please help me in booking a direct flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know when you want to travel?

USER: I want to travel on 05/26 and return on 05/28.

ASSISTANT: Ok, do you need any halt?

USER: I already mentioned above.

ASSISTANT: Please help me with your source code.

USER: I want to fly from Los Angeles, CA - LAX.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry to say no flights found with your details.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.