You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you at this moment?

USER: I am Brenda Lewis. I am planning to travel from SFO to SEA, help me in booking a flight for me?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: My date of travelling to 10/18 to 10/20.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Brenda Lewis, there are no flights available on your provided dates due to heavy bookings.

USER: That's ok.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your help.