You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Miller.

ASSISTANT: How may I assist you?

USER: I want to fly from IAH to OAK, so can you help me for this?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am going to fly on 06/30 and 07/02. Make sure with 0 connection.

ASSISTANT: Just a second please.

USER: Ok.

ASSISTANT: I am sorry no flights with zero connections flights.

USER: Oh! It is ok, no problem. Thank you for your services.

ASSISTANT: Thanks for reaching us.