You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to meet my childhood friend, can you help me with booking?

ASSISTANT: May I know your planning dates?

USER: My trip dates are May 04 and May 06.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are PHL and SEA.

ASSISTANT: Do you prefer any specifications?

USER: No.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: There is a direct flight in UA airlines with the fare 100.

USER: Please proceed.

ASSISTANT: May I know your name?

USER: I am Shirley Harris.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.