You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Robert Thomas. I would like to cancel my recent reservation, will you help me with that?

ASSISTANT: Sure, I will help you. Please give me a minute.

USER: Ok, I will wait for your response.

ASSISTANT: Robert, there is no reservation found with your details.

USER: Can you please check once again in your database about my recent reservation?

ASSISTANT: Ok. Upon your request, I will search again. Please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: Robert, you didn't submit your booking request properly. This is the reason why we didn't find your reservation in our database.

USER: Ok, I will think about that. Thank you for your service.

ASSISTANT: Thank you for choosing us.