You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Brenda Phillips, want to travel from IAH to LAX. Please help me.

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are from 01/09 to 01/11.

ASSISTANT: Do you have any specifications?

USER: I want a direct flight.

ASSISTANT:  Do you have any more specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Brenda Phillips, no direct flight is available on your route.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.