Airline agent: Japan Airlines. (Identifying)
Caller: Yes, I'd like to change a flight reservation. (Requesting)
Airline agent: Name and flight number? (Inquiring)
Caller: The name is Otway and I'm reserved on JL 778 on 7 February. (Identifying)
Airline agent: G. Otway. Tokyo to Vancouver. (Acknowledging) Mmm? (Inquiring)
Caller: I want to leave on the 8th. (Informing) Are there any seats? (Requesting)
Airline agent: Just a second. (Stalling) Uh-huh. (Affirming) Tokyo-Vancouver. Mr Otway, 8th February. Flight 778. (Informing)
Caller: The same flight number? (Checking)
Airline agent: It's a daily flight. (Reassuring)
Function Analysis