You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jennifer Martin. I have planned a trip with my students to enjoy the holidays in water world, so can you book a flight ticket for me from LAX to SEA?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your traveling dates?

USER: My travelling dates are 10/19 and back on 10/21.

ASSISTANT: Sorry to say that there are no flight's available based on your travelling dates.

USER: Sad to hear from you end that there is no flight for me but no problem, thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Welcome.