You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER:  I am Raymond Adams, I looking for a direct flight from Houston to visit Navy Pear to meet my friend at Chicago. Can you help me to book a flight?

ASSISTANT: Sure, I am willing to help you. May I know when you are willing to travel?

USER: I will fly on 10/17 and return on 10/19.

ASSISTANT: Ok, please share your journey codes for further process.

USER: My source point is TX-HOU and destination is IL-ORD.

ASSISTANT: Please stand by I will get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to say that no flights found based on your details.

USER: Thank you for the details, I will replan my journey and back to you for booking.

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