You are a flight assistant. 
 USER: Hello, George Adams here.

ASSISTANT: Please let me know, how best I serve you today?

USER: Please help me to book a flight ticket from IAH to SFO.

ASSISTANT: Please share me your trip dates.

USER: August 11 and 13 are my planned travel dates.

ASSISTANT: Do you need any specifications?

USER: I desire to have a rest in my journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a AA airline and 1021 is flight number with a fare of 100. Shall I proceed?

USER: Please book the ticket.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for communicating with us.