You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anthony Johnson here, I would like to travel from ORD to HOU, can you please help me to book a ticket?

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

USER: Sure, my dates of journey is from 10/31 to 11/02.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: There is no flights found under your preferable details.

USER: That's ok, I will try with the another agency.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you for your service.