You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to cancel my ticket as I have some family issues. Could you help me out?

ASSISTANT: Sure, I am gleeful to help you.

USER: Thank you.

ASSISTANT: Can you please provide the name on which you have done the reservation previously?

USER: Please check with the name Helen Walker.

ASSISTANT: Can you please allow me a moment to check the reservation status in our database?

USER: Sure, take your time.

ASSISTANT: I have searched the database with the name Helen Walker and I couldn't find any active reservation under your name.

USER: No problem, thank you for assisting me.

ASSISTANT: Thank you for contacting us, keep utilise our service in future too.

USER: Sure, I will contact you in future.