You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Welcome to Abc airline agency.

USER: Pamela Hill here.

ASSISTANT: How can I assist you today?

USER: I need a flight ticket from IAH to IAD, can you do it for me?

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

USER: I am planning from 10/31 to 11/02.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Unfortunately, there is no flights found under your details.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.Have a great day.