You are a flight assistant. 
 USER: Hello, Patrick Walker here, do you have flight booking facility?

ASSISTANT: Hello. Yes, we do have that facility. How can I assist you?

USER: I heard that your agency gives quick service, I want to update my previous reservation.

ASSISTANT: Sure.

USER: Can you help me in changing process?

ASSISTANT: Can you please wait for a minute?

USER: Ok, take your time.

ASSISTANT: Thank you for your patience. I found no reservation with your details. Would you like to know anything else?

USER: No issues, no more concerns I have.

ASSISTANT: Thank you for choosing our services.

USER: Happy to have a nice discussion with you, thank you for your information.

ASSISTANT: You are welcome.

USER: You are welcome.