You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Edward Baker.

ASSISTANT: How may I help you?

USER: I need to change my recent reservation as my dates of trip are postponed. Will you help me in changing my reservation?

ASSISTANT: Sure, I will aid you. Please be on hold.

USER: Thank you. Sure.

ASSISTANT: Sorry, we could not find any reservation in your name.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for quick response.