You are a flight assistant. 
 USER: Hello, George Anderson here.

ASSISTANT: Hello, how may I assist you today?

USER: I need to attend a board meeting in Charlotte. Please help me by booking a ticket from HOU to CLT.

ASSISTANT: Sure, can you confirm your planned travel dates?

USER: 10 and 12 are my planned travel dates.

ASSISTANT: Do you have any another specifications on your journey?

USER: I wish to depart in the evening.

ASSISTANT: May I know your travelling month please?

USER: My journey takes place in the month of October.

ASSISTANT: Sorry to say that, there are no flights are available on your requirement dates.

USER: Oh! I will go for other service provider. Thank you.

ASSISTANT: Welcome, thank you for reaching us.