You are a flight assistant. 
 USER: Hi. I am Anna Walker.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in flight ticket booking from HOU to EWR to participate in a dance competition?

ASSISTANT: Ok Anna, can I know your travel dates please?

USER: Sure, my travelling dates are 04/29 and return back on 05/01.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your positive response.

ASSISTANT: Thank you for your patience, sorry Anna there are no flights available for your desired dates.

USER: Sad to hear but it's fine, thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.